Single-system image network subsystem in a clustered system
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United States of America Patent
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Sep 8, 1998
Grant Date -
N/A
app pub date -
Nov 22, 1995
filing date -
Nov 22, 1995
priority date (Note) -
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Abstract
Transparent routing within the cluster is achieved (without changing the networking code on each node of the cluster) by using a pair of modules interposed appropriately on the networking stack. In a 'clustered' system built out of several computers, using the present invention, the networking subsystem appears to applications as if the applications are running on a single computer. In addition, no modifications to the networking code is needed. The present invention is extensible to a variety of networking protocols, not just TCP/IP as the packet filter allows the routing within the cluster to be done dynamically. No modifications to the applications is needed (same binaries will work). A packet filter and remote communication between the modules through IDL enable the modules to do their job. A name server that maintains the port name space is used.
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